The Reseacrh On Water Controlling Structures Of Anba Of Yangshan Gold Belt,in Gansu

In this paper, Relying on the1:10000regional geological survey projects inGansu Yangshan and the research on deep structural control laws of Yangshan GoldBelt, in Gansu Province, I select “The Research on Water Controlling Structures ofAnba of Yangshan Gold Belt, in Gansu” as the title. Yangshan Gold Belt belongs tothe South West Qinling belt, located in mainland China Yangtze plate-the NorthChina Plate-Songpan-Ganzi block transform parts of the three blocks together, in avery complex tectonic environment. Based on Field research, drilling in the fieldcatalog, and a large number of Water quality analysis, combined with laboratoryidentification, I use the thought of structural analysis to study the structure andmineralization of the Yangshan gold deposit. Thesis has significance for mineralexploration and regional prospecting. Achieve new knowledge and progress, asfollows:Loess and eluvium of Quaternary are thick and spread widely in the Yangshangold mining areas. In the hillside fields and two flanks of gullies, the type of groundwater is mainly pore water and fissure water, which recharged predominatelybyvertical infiltration of meteorological water and drainaged by hill springs andbrooks. Aquifer consists of loose deposit of Quaternary and weathering rock; aquifugeis the bedrock in the depth of the surface. The hydrogeological condition of thedeposit is simple, and water for mine development comes from Malian river.According to lithologic character and rockmechanics property, different engineeringrocks have been divided, such as Quaternary loose soil, cataclastic rocks, phyllite,plagiogranite and so on into soft rocks in the well-developed fissure zone andstructural weak zone. Limestone, dike rocks in depth, and calcareous politic phylliteand so on belong to blocky engineering geological petrofabrics. Engineeringgeological conditions in the mining areas are mediumAn Ba area groundwater received a series of faults and stress distribution,showing theeast to the west of the water level distribution.